The security standard for onchain finance. $38 trillion+ in value transferred secured since 2015 for the institutions and innovators shaping global finance.
Joined August 2016
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OpenZeppelin is now officially a part of S&P Global.
The acquisition we announced in September is finalized. OpenZeppelin’s decade of securing and building the infrastructure onchain finance runs on now meets @SPGlobal's more than a century of helping markets understand risk. Together, we can help institutions and builders move onchain with greater confidence.
To our clients and to all the users of OpenZeppelin open source tools:
• OpenZeppelin Contracts and all our open source applications and tools remain open source, free and publicly maintained on GitHub.
• Security audits, secure development work and ecosystem programs continue with the same team, brand, quality and customer experience, now backed by S&P Global’s research capacity, market data and institutional reach.
For the last decade, OpenZeppelin has set the security standard for onchain finance. Now we take it to the scale of global finance.
Read the full announcement: press.spglobal.com/2026-10-2…
Tokenized finance is scaling fast, but every new network risks becoming an island.
OpenZeppelin is glad to support the contribution of IBC to @lfdecentralized helping make secure interoperability a shared open standard for finance.
Cosmos and @interchain_io are contributing IBC to @lfdecentralized to transform it into a leading open standard for digital ledger interoperability.
The contribution is supported by @googlecloud and individuals from @WellsFargo, @FigureMarkets, @datachain_en, @injective, @CronosNetwork, @OpenZeppelin, @cardano_cf, @ZenithFdn, @EspressoSys, and 10 other industry-leading companies.
Learn how to build a USDT vault on @TRONdao with Hardhat, using TRC-4626 with entry and exit fees.
Our new guide covers where TRON differs from Ethereum: USDT transfers, 6-decimal amounts, address formats and energy instead of gas ↓
docs.openzeppelin.com/tron-c…
Convergence is coming to DAS London 🇬🇧
Our curated soirée for the leaders moving finance onchain: banks, asset managers, capital markets infrastructure, DeFi protocols, and blockchain technology experts.
📆 Nov 10, 4-7pm GMT
Request a spot ↓
luma.com/convergence-onchain…
This month in The Onchain Brief, October edition:
• OpenZeppelin is now part of S&P Global
• Securing a MiCA euro stablecoin before issuance, with Crédit Agricole CACEIS
• Confidential tokens, now live on Stellar
• Our partnership with Chainlink
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Subscribe to The Onchain Brief for monthly updates from OpenZeppelin, and exclusive access to our events ↓
openzeppelin.com/newsletter
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We're excited to be supporting @EFDevcon 8 🇮🇳
Find us at the booth to talk all things smart contracts with our engineers.
The team will also be on stage with talks and workshops throughout the week.
@OpenZeppelin is joining Devcon 8 as a supporter!
For over a decade they've helped secure the Ethereum ecosystem through their smart contract libraries that have powered $31T+ in value transferred on Ethereum and its L2s.
Meet the team at their booth in Mumbai, Nov 3-6.
OpenZeppelin is proud to support @summit_defi again this year 🔒
The more value moves onchain, the clearer it is that advancing open security research is fundamental, and gatherings like DSS keep that work moving.
Meet our team and join our talks in Mumbai, Nov 1–2 🇮🇳
A warm welcome to @OpenZeppelin, joining us as a sponsor of DSS 2026!
Thank you for supporting the people working to make DeFi safer.
See you in Mumbai, 1–2 November.
Tickets: luma.com/9qtxqqxx
ALT OpenZeppelin joins DSS 2026 as a sponsor. Official coloured Z and black wordmark. 1–2 November 2026, Marriott, Mumbai.
Post-quantum security is becoming a real design concern for onchain systems.
We're glad to support @Starknet and @StarkWareLtd on an open challenge advancing post-quantum signature verification, open to people and AI agents alike 🔒
Quantum-safe transactions, priced in cents.
In an open challenge, Falcon-512 verification reached ~$0.023 per transaction.
Participants and their AI agents set 434 records in the challenge from @StarknetFndn and @StarkWareLtd, in collaboration with @OpenZeppelin.
postquantum.provably.fast
To operate onchain, organizations need privacy and shared control, without handing over the keys.
OpenZeppelin and @0xMiden designed Guardian to that end: the first non-custodial Private State Manager.
Now live as Miden opens to its early partners.
Read the story ↓
openzeppelin.com/customer-st…
OpenZeppelin Contracts for Stellar v0.8 is live, introducing the Confidential Token 💫
Add a confidential layer on top of any SEP-41 token to keep balances and transfer amounts private, with compliance controls built in.
Full release ↓
Confidential Token is designed for regulated finance: amounts and balances stay private, parties stay visible.
Compliance oversight applies where the rules require it and selective disclosure lets a holder prove a single fact to a third party.
Start testing audited contracts ↓
openzeppelin.com/news/openze…
Private @0xMiden accounts keep only a commitment onchain. So how do @joinBread multisig cosigners stay in sync?
Guardian stores & validates state deltas offchain and cosigns the transaction as an independent check the ZK proof requires. It can’t move funds alone.
See it live ↓
Guardian is open-source and self-hostable, so any team can run its own instance.
Setup guide: youtu.be/Tr_FRh6QZuc
Docs: docs.miden.xyz/builder/miden…
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Today we’re announcing a strategic partnership with @chainlink
Chainlink CCIP and ACE are now natively embedded across OpenZeppelin tooling, giving institutions and developers one trusted foundation for moving assets and operations onchain.
Now native to OpenZeppelin tooling:
• CCIP for secure cross-chain token deployment
• ACE for compliance policies that evolve without redeploying
Coming next: production-grade institutional solutions powered by CRE.
Full announcement: openzeppelin.com/news/openze…
Onboarding trillions of assets onchain is a shared effort across standards, infrastructure, and security.
OpenZeppelin is proud to be part of the Tokenized Asset Coalition, contributing the foundations institutions need to bring finance onchain with confidence 🔒
Very excited to announce we're welcoming 12 new members.
Another step toward our mission of onboarding the next TRILLION of assets onchain.
With the SEC opening the door to tokenized stock trading onchain:
- We've added a regulated broker-dealer building lending against tokenized NMS stock
- We're deepening our DeFi bench with leading lending protocols and onchain asset managers
- We've brought on the infrastructure tokenization runs on: smart contract security, onchain accounting, blockchain data and self-custody
- We've expanded into Canton, an ecosystem institutions are adopting quickly
- We're strengthening our research and policy work with two of the most respected standards and policy groups in the space
Meet the new TAC members:
tacoalition.org/p/welcome-to…
We also unveiled the Global Access Protocol (GAP) today, a framework for making tokenized securities composable in DeFi. More on this next week.
Thank you to our returning members, alums and partners for continuing to build this with us!
cc: @AscendFi, @controlprivate, @cryptio_co, @EntEthAlliance, @eulerfinance, @lavanetxyz, @OpenZeppelin, @Protocol_Wealth, @reserveprotocol, @trize_io
Exploits rarely start and end in the code. Technical flaws, operational gaps, and human behavior compound each other.
Our Security Research Manager Steven Thornton unpacks how they interact, and how to design for it, at @1inch Groundwork in Washington, DC tomorrow at 3:35 PM ET.
OpenZeppelin engineer @boyanxyz looks at what it takes for an issuer to launch a confidential stablecoin on @StellarOrg.
It starts with the open-source confidential token implementation in our Stellar library, currently on testnet.
OpenZeppelin Contracts have now powered over $38 trillion in value transferred.
Nearly half of that value moved in the last two years.
The security standard for onchain finance 🔒
Last week during @Sibos, Convergence brought together the people moving finance onchain.
Leaders across banking and capital markets, discussing where tokenization, stablecoins, and settlement go next, with our co-hosts @WisdomTreeOnchn and @dfnsHQ
See you at the next one 🥂
Most tokenized assets can't move beyond where they're issued, because no other environment recognizes the holder.
ONCHAINID v3 makes identity a smart account the holder carries, recognized wherever the asset goes.
Co-developed with @TREX_network and audited by OpenZeppelin.
Payments, stablecoins, tokenized assets: @StellarOrg keeps expanding what real-world finance looks like onchain.
OpenZeppelin is proud to help set the security standards that let it scale.
Our CTO @jalex206 will join the Meridian stage in Lisbon to share what's next.
The @StellarOrg ecosystem meets in Lisbon October 28-29 🇵🇹
Discounted ticket are available through OpenZeppelin.
meridian.stellar.org/registe…
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For regulated institutions, going onchain can't mean putting positions and strategies on display. Confidentiality is the precondition to tokenize at scale.
Great to co-host this in Zurich with @cmta_ch, with our own Smriti Verma setting out the institutional exposure problem.
How can regulated institutions tokenize securities without putting their positions, clients and strategies on display?
We explored this topic in Zurich on Monday with @OpenZeppelin at "Confidentiality in Regulated Onchain Markets".
Highlights👇
